基于性能评价网状图的装载机发动机与液力变矩(5)

基于性能评价网状图的装载机发动机与液力变矩器匹配优化

网络预印版常绿：基于性能评价网状图的装载机发动机与液力变矩器匹配优化

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OptimizationofPowerMatchingonTorque-converterwithDieselEnginefor

WheelLoaderBasedonPerformanceEvaluationMeshFigure*

ChangLü

（HuaiyinInstituteofTechnology,FacultyofTransportationEngineering,Huaian223003，China)

Abstract:Inordertosolvetheproblemthattherearesomanyperformanceevaluationindexesmatchingtorque-converterwithDieselEngineforWheelLoader,andtheseindexesweightsaredifficulttodetermine,thispaperputsforwardtheoptimizationmethodonmatchingtorque-converterwithdieselengineforwheelloaderbasedonperformanceevaluationmeshfigure.Theperformanceevaluationindexesmatchingtorque-converterwithDieselEngineforWheelLoaderincludetheratedconditionsneardegrees、theactivationenergydegrees、theeconomiczonetolerance、thepowerdeliveryconstant、thefuelconsumptioncoefficientsof5,respectively,defineandcalculatethefivematchingperformanceindicators.Accordingtothesizeofthecalculatedvalue,constructtheperformanceevaluationmeshfigureaboutmatchingtorque-converterwithdieselengineforwheelloader.Thisfigureaimsatoptimizingtheminimumareaoftheperformanceevaluationmeshfigure,constructtheobjectivefunction，optimizehydraulictorqueconvertereffectivediameter.Theoriginalsizeofhydraulictorqueconvertereffectivediameteris0.360m，theeffectivediameteroftheoptimizedhydraulictorqueconverteronwheelloadersis0.350m，theoptimizedengineandtorque-converterworktogethertoimprovethematchingperformanceof5.7%.

Keywords:wheelloader,dieselengine,torque-converter,performanceevaluation;meshfigure,optimization